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Finding the Fourth Proportional to 295,384.55, 407,640.06 and 168,068.34

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Solution

The fourth proportional to 295,384.55, 407,640.06 and 168,068.34 is: 231,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,384.55 : 407,640.06 = 168,068.34 : x
  2. Step 2: Convert to fraction form
    295,384.55/407,640.06 = 168,068.34/x
  3. Step 3: Cross multiply
    295,384.55x = 407,640.06 × 168,068.34
  4. Step 4: Simplify right side
    295,384.55x = 68,511,388,201.70
  5. Step 5: Solve for x
    x = 68,511,388,201.70/295,384.55
  6. Step 6: Final answer
    x = 231,939.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.